Isahani y'icyuma igabanijwemo ubwoko bubiri: amasahani yoroheje n'isahani yijimye. Isahani yoroheje <4 mm (tryorness 02 mm), isahani yicyuma 4 ~ 60 mm, yinyongera yicyuma
Impapuro z'ibyuma zigabanyijemo ishyushye kandi zizunguruka ukurikije kuzunguruka.
Isahani yoroheje ni isahani yicyuma hamwe nubwinshi bwa 0.2-4mm Byakozwe na Bishyushye cyangwa Ubukonje bukabije. Ubugari bwisahani yoroheje iri hagati ya 500-1800mm. Usibye gutanga bitaziguye nyuma yo kuzunguruka, amabati yoroheje nayo aratorwa, irasa kandi irazimye. Ukurikije uburyo butandukanye, isahani yoroheje yicyuma yuzuyemo nibikoresho bitandukanye nubugari bwisahani yoroheje ni 500 ~ 1500 mm; ubugari bw'urupapuro rwinshi ni 600 ~ 3000 mm. Amabati ashyirwa mubikorwa ukurikije ubwoko bwibyuma, harimo nicyuma gisanzwe, ibyuma birebire, ibyuma byicyuma, ibyuma birwanya ibyuma, urupapuro rwicyuma rwa silicon, nibindi .; Nk'uko imikoreshereze yumwuga, hari ibyapa byamavuta, enamel plate, isahani yamasasu, nibindi .; Dukurikije ubuso bwo hejuru, hari urupapuro rwa gakondo, urupapuro rwashyizwe hamwe, urupapuro rwaciwe, isahani ya plastike, nibindi.
Isahani yicyuma ni ijambo rusange ryisahani yicyuma gifite ubunini bwa 4mm. Mubikorwa bifatika, ibyapa bifatika hamwe nubunini butarenze 20mm bitwa amasahani ya> 20mm kugeza kuri 60mm bitwa isahani ya> 60mm bakeneye kuba umubyimba wa> 60mm Uruganda rukomeye rwinshi, niko rwitwa isahani yinyongera. Ubugari bwisahani yicyuma cyijimye ni kuva 1800mm-4000mm. Isahani yijimye igabanijwemo amasahani yo kubaka ibyumba, isahani yikiraro, amasahani yijimye, amasahani yicyuma, amasahani yimodoka, amasahani yintwaro yintwaro akurikije ikoreshwa ryabo. Icyiciro cyicyuma cyisahani yicyuma muri rusange ni kimwe nikipe yoroheje. Kubijyanye nibicuruzwa, usibye ibyapa byo kumeneka yikiraro, ibyapa byo kumera Amasahani ya garder yicyuma (25 ~ 10 mm yijimye), ibyapa bishushanyijeho ibishushanyo by'icyuma (amasaha ya 2.5-8.
